• Title of article

    An NMR investigation of the merocyanine dyes generated by protolysis of some novel spironaphthopyranoindoles

  • Author/Authors

    Hepworth، John D. نويسنده , , Gabbutt، Christopher D. نويسنده , , Heron، B. Mark نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 1999
  • Pages
    -34
  • From page
    35
  • To page
    0
  • Abstract
    Two novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation gives stable, intensely coloured dyes. 1H nmr spectroscopy has been used to establish the configuration of these dyes.
  • Keywords
    Solvent effect , Structure effect , photooxidation , Cyanine dyes , Photostability
  • Journal title
    DYES & PIGMENTS
  • Serial Year
    1999
  • Journal title
    DYES & PIGMENTS
  • Record number

    54472